/*
 * Copyright 2002-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.gao.flying.mq.support;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;

/**
 * Strategy interface that specifies a converter between Java objects and JMS messages.
 *
 * <p>
 * Check out {@link SimpleMessageConverter} for a default implementation, converting between the 'standard' message
 * payloads and JMS Message types.
 *
 * @author Mark Pollack
 * @author Juergen Hoeller
 * @since 1.1
 * @see org.springframework.jms.core.JmsTemplate#setMessageConverter
 * @see org.springframework.jms.listener.adapter.MessageListenerAdapter#setMessageConverter
 * @see org.springframework.jms.remoting.JmsInvokerClientInterceptor#setMessageConverter
 * @see org.springframework.jms.remoting.JmsInvokerServiceExporter#setMessageConverter
 */
public interface MessageConverter {

    /**
     * Convert a Java object to a JMS Message using the supplied session to create the message object.
     * 
     * @param object
     *            the object to convert
     * @param session
     *            the Session to use for creating a JMS Message
     * @return the JMS Message
     * @throws JMSException
     *             if thrown by JMS API methods
     * @throws MessageConversionException
     *             in case of conversion failure
     */
    Message toMessage(Object object, Session session) throws JMSException;

    /**
     * Convert from a JMS Message to a Java object.
     * 
     * @param message
     *            the message to convert
     * @return the converted Java object
     * @throws JMSException
     *             if thrown by JMS API methods
     * @throws MessageConversionException
     *             in case of conversion failure
     */
    Object fromMessage(Message message) throws JMSException;

}
